Database Develop

P970 can't use any SIM cards

My Optimus Black was working fine for about 3 months. Not sure what happened, but it started showing no network/signal. It's a completely unlocked phone. I tried a friend's SIM card and the first time it wouldn't work, but I tried again a few days later and it worked but had a pretty bad signal. Now it won't work no matter how many times I try. I even bought a new SIM card/number (I live in Asia) and it won't work.
I had Android 2.3 and thought maybe something got corrupted, so I wiped and reinstalled, but same problem. I wiped again and installed Mokee OS, and same issue. (By the way, after using Android 2.3, switching to Mokee is so much nicer, although it's in beta and still has some bugs.)
The 6 gold SIM connectors look fine. I used a SIM app and it recognizes the SIM card and its carrier, so I think the card is being read OK.
I live on a small island, so sending the phone back to LG or taking it back to where I bought it (Bangkok) would be a huge hassle. Does anybody have any ideas on things to try to fix this? I'd really appreciate the help.

Can you return to stock rom (rooted or not, as you want) and then tell me if you see something write in LG lockscreen (I'm thinking about LG Security Error) ?
Sent from my LG-P970 using xda premium

i think its imei deleted.
please look into menu/settings/apout phone/status/imei
it is normal?

Sobralobo said:
Can you return to stock rom (rooted or not, as you want) and then tell me if you see something write in LG lockscreen (I'm thinking about LG Security Error) ?
Sent from my LG-P970 using xda premium
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Click to collapse
The first time i wiped the phone i went back to Android 2.3, but all that the lock screen said was "No service". Usually it says "DTAC" when I have service. Is that what you mean?

agritux said:
i think its imei deleted.
please look into menu/settings/apout phone/status/imei
it is normal?
Click to expand...
Click to collapse
I think everything is normal. It has an IMEI number. It is 15 numbers. It also has an IMEI SV number that is 16 numbers.

gavin310 said:
The first time i wiped the phone i went back to Android 2.3, but all that the lock screen said was "No service". Usually it says "DTAC" when I have service. Is that what you mean?
Click to expand...
Click to collapse
No if the SIM card isn't used that phrase is normal. I got a problem like you but it was written "LG Security Error" and I had to use Smartflash tool erasing cp and then recover my imei. But it doesn't seems that you have the same problem. "/
Sent from my LG-P970 using xda premium

Sobralobo said:
No if the SIM card isn't used that phrase is normal. I got a problem like you but it was written "LG Security Error" and I had to use Smartflash tool erasing cp and then recover my imei. But it doesn't seems that you have the same problem. "/
Sent from my LG-P970 using xda premium
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Click to collapse
thanks for trying hopefully someone will have something else to try...

Wait...before try a sim without a pin code
If it doesnt works then flash with smartflashtool and recover your imei (threads of how to available)

theaks30 said:
Wait...before try a sim without a pin code
If it doesnt works then flash with smartflashtool and recover your imei (threads of how to available)
Click to expand...
Click to collapse
Thanks. I'm going to try flashing the stock rom. I can't find any good threads about recovering the IMEI. Everything I am finding is about Samsung. Do you have any links you can share?

Try factory reset

sekhar13515 said:
Try factory reset
Click to expand...
Click to collapse
I just flashed the stock rom. android 2.2.2... still no service

here you go
http://forum.xda-developers.com/showthread.php?t=1338397
problem should be solved

theaks30 said:
here you go
http://forum.xda-developers.com/showthread.php?t=1338397
problem should be solved
Click to expand...
Click to collapse
Awesome, thanks for this. I'm going to give it a try now... I'll report back in a bit

passeth
theaks30 said:
here you go
http://forum.xda-developers.com/showthread.php?t=1338397
problem should be solved
Click to expand...
Click to collapse
I flashed the new rom and erased the CP data. still no phone service but i haven't reset the IMEI yet. having trouble with that step. i'm not sure if this is going to work though, my problem seems different. my phone can see my SIM card, but i just don't have any phone service with any SIM card. the sim cards work fine in other phones.

try a sim without pin code
and flashing with smartflashtool (erase entire cp) doesn't works?

theaks30 said:
try a sim without pin code
and flashing with smartflashtool (erase entire cp) doesn't works?
Click to expand...
Click to collapse
i don't think my SIM has a pin code? I'm not sure though? There's only one type of SIM you can get here in Thailand. You buy the SIM from a phone shop or 7-11 and add credits to it. I've never seen any other type of SIM card.
Yep, I used smartflashtool and erased the entire CP (had to enable with Windows Enabler). Now there is no IMEI and still "No service".

Retry or by changing baseband now...there was a tutorial in optimus3D threads i think
Or in this one itself
Change the baseband

No sim card problem

Hi i did a search for the problem but none of the other threads with this title matched my problem.
I'm hoping someone can help i rooted and unlocked the bootloader on my x8 and put on ginger DX about 2 months ago and it's been working great.
just for info I didn't flash any custom kernel
So to my problem i tried to send a text message earlier tonight and i wouldn't send. my phone appeared to have no signal. I moved about in the house trying to get a signal no joy. So i rebooted my phone when it came back on it said there was no sim card!
Thinking something had gone wrong with the rom I tried a full wipe through xrecovery to no avail so i then did a repair with PCC.
However my phone still says No sim card
anyone know of any other steps i can take to fix my phone?
if it's beyond me fixing it I'm with O2 and have insurance will they be able to tell that i rooted and unlocked the bootloader and is that likely to invalidate my insurance??
Thanks in advance

IAmNice said:
Abot the insurance if you relock bootloader and unroot phone you will be fine. About the sim card ive no idea and this thread belongs in q and a
Sent from my E15i using xda app-developers app
Click to expand...
Click to collapse
whoops you're right i posted in the wrong part of the forum. thanks for your reply anyway
can any mods reading this move it for me?

Try disable your PIN
Sorry for my bad english
Sent from my E15i using xda premium

Front-Line said:
Try disable your PIN
Sorry for my bad english
Sent from my E15i using xda premium
Click to expand...
Click to collapse
the PIN was never enabled.
going back to the previous reply wouldn't doing a repair with PCC relock my bootloader?

FIX
I had the same problem. did you use this guide HERE?
If not do the whole guide following his instructions.
or
If you did go to the bottom of the first post and look at common issues. One of them is sim is not recognised. All you have to do is use the other unlock tool.
You will have it fixed in no time!
Please thank me if you appreciate my effort to try and fix this problem.

baddaman54 said:
I had the same problem. did you use this guide HERE?
If not do the whole guide following his instructions.
or
If you did go to the bottom of the first post and look at common issues. One of them is sim is not recognised. All you have to do is use the other unlock tool.
You will have it fixed in no time!
Please thank me if you appreciate my effort to try and fix this problem.
Click to expand...
Click to collapse
I wasn't trying to re unlock my bootloader i just wanted my sim to be recognised, but if i reunlock it is it likely to be recognised?
I didn't use this guide when i originally unlocked my bootloader i used x8toolbox

Have you tried inserting the sim to other fone and see if it works? or try using different sim and see if the fone recognize it.
Im guessing your sim card was damage.

deedii said:
Have you tried inserting the sim to other fone and see if it works? or try using different sim and see if the fone recognize it.
Im guessing your sim card was damage.
Click to expand...
Click to collapse
Just tried that just before i turned the computer on and i was just thinking the same thing then i saw your reply
now just need to unroot the phone and lock the bootloader before i ring O2
Thanks for everyone's replies and i'll try to put my threads in the right forum next time

You did not unlock the bootloader properly. There was a bug. if sim is working before and not working afterward. Baddaman54 is right. you need to follow the guide and troubleshooters notes. Even though this has been solved I will make this post so that if someone comes here with the same problem they can see all solutions.

gidefide said:
You did not unlock the bootloader properly. There was a bug. if sim is working before and not working afterward. Baddaman54 is right. you need to follow the guide and troubleshooters notes. Even though this has been solved I will make this post so that if someone comes here with the same problem they can see all solutions.
Click to expand...
Click to collapse
I didn't follow that guide at all, as posted earlier i used x8toolbox and i ran the s1 tool which seemed to indicate it was unlocked fine
But i did it about 2 months ago. The phone and sim's been ok all this time running GingerDX with stock kernel.
it appears the sim is damaged not sure how it happened though.

[Q] Help Please!!

Hi, I have not seen help for this anywhere. I attempted to install a custom ROM on my Atrix HD and ended up bricking it. I needed to use the Myth tool to unroot it with MB886_att-user-4.1.1-9.8.0Q-97_MB886_FFW-20-27-release-keys-ATT-US_BuildA.xml.zip------>This worked I was able to use my phone again but now it is completely reset. The phone now does not have my account and says there is no sim card when one is inserted in the phone. I would greatly greatly appreciate help. You guys helped with the previous problems I HOPE I DIDN'T RUIN THE PHONE.
What do I need to do? Is there something I can do?

Does the phone work properly with a different rom?

audit13 said:
Does the phone work properly with a different rom?
Click to expand...
Click to collapse
I reseted it to the factory settings so it looks like I just pulled it out of the box and didnt insert the sim card. So i did not try and install anything else on it I dont know what to do to do that exactly.

Oh man that username made me lol pretty hard OP! xD .. Not sure why but it's just so funny, thread content to username ratio is strong. Anyways my friend, I would try flashing to a good, stable ROM like CyanogenMod or Carbon and see if you SIM card is recognized, or simply remove SIM, reboot phone, and reinsert? This is a strange occurrence, I've RSD'd to stock 3 times never borked SIM. If all else fails flash a different radio? Or you can RSD again using the Mexican Retail Stock ROM (4.1.2) , that is the one I've always used and may give you better results. 4.1.1 may be the issue.
Sent from my MB886 using xda app-developers app

signal help

im having problems with my sim card being able to show when booting my phone, i've used the sim card on a different phone no problem, but ive tried stock and custom roms to see if there was a problem but still no way to find out. ive got a imei number and it shows a circle with a line through it on the status bar.
does anyone have any ideas? i dont wanna buy a new phone could really use any help

josh42666 said:
im having problems with my sim card being able to show when booting my phone, i've used the sim card on a different phone no problem, but ive tried stock and custom roms to see if there was a problem but still no way to find out. ive got a imei number and it shows a circle with a line through it on the status bar.
does anyone have any ideas? i dont wanna buy a new phone could really use any help
Click to expand...
Click to collapse
suggest you check the direction of your sim card insertion, and insert in the correct way
Check this out! Links to useful Guides and " Banned " Documentaries ​

xsenman said:
suggest you check the direction of your sim card insertion, and insert in the correct way
yeah I know which way it goes, im using it in a different phone perfectly fine
Click to expand...
Click to collapse

[Q] my Samsung gt-i9000 wont read sim card

Hi im shure this has been written about before, but I'm trying a new tread
My Samsung galaxy gt-i9000 wont read the sim card, and all the post I've read, says it is most likely software fault,
But I've tryed installing stock software with no luck. I can call emergency calls I can get connected to wifi
Follow this link, as it described what I have done
http://forum.xda-developers.com/showthread.php?t=2770240
Anyone who has suggestion of what I can try?

You've likely lost your imei. If you don't have your efs folder backed up then you're gonna need to flash with odin back to stock.
Sent from my GT-I9000 using Tapatalk

knuckles1978 said:
You've likely lost your imei. If you don't have your efs folder backed up then you're gonna need to flash with odin back to stock.
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
Hi and thanks for reply
When I push *#6# I get an imei number, so I guess thats correct.
However, I think I found the problem, it seems that it's missing one of the pins who should connect to the sim. My sim slot has only 5 pins like this:
Top
''
'''
Bottom
But ive seen on pics, there should be
Top
'''
'''
Bottom
I ordered a replacement part of ebay, so I hope this fix it.
Anyone who knows how many pins the sim slot should have?